On 16/12/2024 09:44, Christophe Grimault wrote:
Hello Brian,
Thank you for this quick answer.
So I guess this is not a limitation related to using Python vs
C++/boost ? Right ?
I understand that using the same streamer is tricky. Concerning your
advice to go with 2 streamers, you think this a totally fine way to go ?
Otherwise, I was trying to use a single streamer because I wanted to
have zero delay between the start time of the 2 streams.
Chris
You'll HAVE to use two different streamers if you want them at different
sample rates. It's a fairly deep
architectural limitation.
Christophe Grimault
NovaGrid SAS
Les Jardins de la Teillais
3, allée de la grande égalonne
35740 Pacé, France
Tel : (33)2 23 41 37 97
Mob: (33)6 82 22 46 93
www.novagrid.com
Le 16/12/2024 à 15:27, Brian Padalino a écrit :
On Mon, Dec 16, 2024 at 9:15 AM Christophe Grimault
<christophe.grima...@novagrid.com> wrote:
Dear users,
I'm using python wrappers with UHD >= 4.5 and a X300 with 2 twinRx.
I would like to know if it is possible to create a streamer, for
more than N channels, with a sampling rate which different for
each channel.
As for now, when I try this, I get all my 4 channels with the
same sampling rate, which is the one of the last channel added.
Is it just possible to do it ? Say, for example, have a streamer
with 2 channels :
* chan 0 on fc = 140 Mhz, rx_rate=20 MS/s
* chan 1 on fc = 140 MHz, rx_rate=1 MS/s
Thanks in advance
I don't think this is possible, but if it is I don't think it's
advisable. You should use 2 different streamers. The timestamps
associated with them should be the same so on the host you can still
align them, but the streamers itself I think would be weird trying to
receive the same N samples over the 2 channels.
Is there any particular reason you don't want to use 2 streamers?
Brian
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